“fully understanding a concept” ends up functioning a little like a “no true Scotsman” argument in this context.
I’m partial to the regeneration theory of knowledge: you really know something when it’s interwoven with the rest of your knowledge such that upon forgetting it, you would readily rediscover it again.
I’m partial to the regeneration theory of knowledge: you really know something when it’s interwoven with the rest of your knowledge such that upon forgetting it, you would readily rediscover it again.